Patents by Inventor Mark E. Henderson

Mark E. Henderson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090216602
    Abstract: A project schedule is managed by developing a float profile area chart having a float profile with a float gradient for at least one non-completed activity within the project schedule to pictorially assess schedule viability. A schedule risk index (SRI) score is calculated to qualitatively assess a risk level associated with the project schedule. Schedule quality metrics are measured and the values for the metrics aggregated to provide an indication of the project schedule being manipulated by a scheduler. Historical trends for the schedule quality metrics are trended across at least two update intervals, and schedule performance is also measured, e.g., by trending early starts and early finishes for the project and a relative slippage occurring from the across schedule updates.
    Type: Application
    Filed: December 22, 2008
    Publication date: August 27, 2009
    Inventor: Mark E. Henderson
  • Patent number: 6581466
    Abstract: A method for inspecting concrete structures includes the steps of exciting the structure to be inspected with a mechanical device such as a chain, sensing resulting vibrations with an acoustical sensor such as a microphone that is not physically coupled to the structure, processing the received signals to exclude signals with frequencies outside of response frequencies of interest corresponding to defects desired to be detected, and examining the received signals. In preferred embodiments, the mean square of the processed signals are compared to a threshold. Areas for which the total energy across the frequency bands of interest exceeds the threshold correspond to defects such as delaminations. The received signals are collected from various locations on the structure. In preferred embodiments, the location of the received signals is also maintained.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: June 24, 2003
    Assignee: Mississippi State University
    Inventors: R. Daniel Costley, Mark E. Henderson, Gary N. Dion